Describe the principles of cardiovascular exercise prescription 10marker

Reading File

Finding Sources

Searching PubMed

cardiac rehabilitation AND exercise prescription

Searching the Web

ACSM exercise prescription FITT cardiovascular exercise guidelines adults

Reading File

Principles of cardiovascular exercise prescription

Cardiovascular or aerobic exercise should be individualized, safe, measurable, and progressively increased to improve cardiorespiratory fitness and reduce cardiovascular risk. It is usually framed using the FITT-VP principle.

1. Pre-exercise assessment and risk stratification

Take history of cardiovascular disease, symptoms, drugs, comorbidities, prior activity, and personal goals.
Examine resting heart rate, blood pressure, body mass, functional capacity, and musculoskeletal limitations.
Identify high-risk features such as unstable angina, uncontrolled arrhythmias, severe heart failure, acute illness, or abnormal exercise-test findings. These require medical review or supervised rehabilitation.
Use an exercise test where appropriate to establish exercise capacity, ischemic threshold, heart-rate response, and safe training limits. Functional exercise testing before aerobic training helps match intensity with both benefit and adverse-event risk.

2. Frequency

Prescribe aerobic exercise on 3-5 days per week initially.
Most days of the week is preferable for weight control, cardiovascular risk reduction, and cardiac rehabilitation.
Avoid sudden, unaccustomed high-frequency strenuous activity in sedentary individuals.

3. Intensity

Intensity is the most important component and should be individually selected.

Begin with light to moderate intensity, especially in sedentary, elderly, or cardiac patients.
Moderate intensity may be prescribed as:
- 40%-59% heart-rate reserve (HRR) or oxygen uptake reserve
- About 64%-76% of maximal heart rate, where suitable
- Borg rating of perceived exertion (RPE) 12-13/20, or “somewhat hard”
- Talk test: able to talk in short sentences but not sing comfortably.
Progress to vigorous intensity only if clinically suitable: roughly 60%-89% HRR or RPE 14-17.
In patients taking beta-blockers or with an unreliable heart-rate response, use RPE, symptoms, and the talk test rather than target heart rate alone.
For people with documented ischemia, exercise should remain below the ischemic or angina threshold.

4. Time or duration

Aim for 150 minutes/week of moderate-intensity aerobic activity, or 75 minutes/week vigorous activity, or an equivalent combination.
Begin with shorter bouts, for example 10-20 minutes/session, and build toward 30-60 minutes/session.
Exercise may be accumulated in several short bouts, such as three 10-minute walks, particularly in unfit patients.

5. Type of exercise

Choose rhythmic exercise involving large muscle groups, such as:

Brisk walking
Cycling
Swimming
Jogging
Rowing
Low-impact aerobic dance

Choice should reflect the person’s preference, access, joint status, balance, cardiac condition, and functional ability. Variety improves adherence and reduces boredom. Resistance training and flexibility exercises may be added, but aerobic activity remains central to cardiovascular conditioning.

6. Volume

Total weekly volume is determined by frequency × intensity × duration.
The initial target is at least 500-1,000 MET-minutes/week, broadly equivalent to 150 minutes of moderate aerobic activity.
Greater volumes may be needed for weight reduction or maintenance, provided the individual can exercise safely.

7. Warm-up and cool-down

Include 5-10 minutes of low-intensity warm-up before training and a gradual cool-down afterward.
Warm-up prepares the cardiovascular and musculoskeletal systems.
Cool-down prevents abrupt venous pooling, hypotension, dizziness, arrhythmia, and angina, particularly in older adults and cardiac patients.

8. Progression

Start low and progress slowly: duration first, then frequency, and finally intensity.
Increase only one component at a time, commonly by about 5-10% per week as tolerated.
Progression depends on symptoms, RPE, heart-rate and blood-pressure response, recovery, and adherence.
Reassess fitness and revise the prescription periodically. Regular training may require about 12 weeks to show a new steady level of exercise capacity.

9. Monitoring and safety

Monitor:

Heart rate, blood pressure where indicated, RPE, symptoms, and recovery.
Stop exercise and seek assessment for chest pain, severe breathlessness, dizziness/syncope, palpitations, unusual fatigue, or poor exercise tolerance.
Avoid exercise during febrile illness, acute cardiac symptoms, severe dehydration, and unsafe weather conditions.
Ensure hydration, appropriate clothing, footwear, and a safe exercise environment.

10. Individualization and adherence

Set realistic, patient-centred goals.
Consider age, diagnosis, medications, baseline fitness, occupation, preference, social support, and barriers.
Encourage self-monitoring, activity logs, education, and long-term lifestyle integration.
The prescription should be reviewed and adjusted as capacity and clinical status change.

Summary: A cardiovascular exercise prescription should specify frequency, intensity, time, type, volume, progression, and safety monitoring, after appropriate assessment. The aim is a gradual, regular aerobic programme that improves fitness without provoking cardiovascular symptoms.

Text support: an aerobic prescription should specify target heart-rate range or perceived exertion, session duration, frequency, exercise type, and progression, with warm-up and cool-down included. Pfenninger and Fowler’s Procedures for Primary Care, p. 667. The AHA FITT framework similarly describes exercise prescription through frequency, intensity, time, and type.

not enough in detailed 5 pages

Reading File

Finding Sources

Searching PubMed

cardiac rehabilitation AND exercise prescription

Searching the Web

American Heart Association exercise prescription FITT principle cardiovascular rehabilitation safety contraindications

Principles of Cardiovascular Exercise Prescription

Introduction

Cardiovascular exercise, also called aerobic or endurance exercise, consists of rhythmic activity involving large muscle groups for a sustained period, with the aim of improving the ability of the heart, lungs, blood vessels, and skeletal muscles to deliver and utilize oxygen.

Examples include brisk walking, jogging, cycling, swimming, rowing, stair climbing, and aerobic dance.

An exercise prescription is an individualized, written plan that specifies the amount and type of physical activity required to achieve a health or fitness goal safely. It is similar to a drug prescription: the clinician selects the appropriate dose, monitors response and adverse effects, and modifies the plan over time.

The basic framework is the FITT-VP principle:

Frequency: how often exercise is done
Intensity: how hard the individual works
Time: duration of each exercise session
Type: mode of exercise
Volume: total amount of exercise performed
Progression: planned increase in training load

For patients with cardiovascular disease, exercise should also include pre-exercise evaluation, risk stratification, monitoring, warm-up, cool-down, education, and long-term adherence measures.

Objectives of cardiovascular exercise prescription

The main goals are:

To improve cardiorespiratory fitness and functional capacity.
To improve exercise tolerance in daily activities.
To reduce cardiovascular risk factors such as hypertension, obesity, insulin resistance, dyslipidaemia, and sedentary behaviour.
To improve endothelial function and peripheral circulation.
To reduce symptoms such as exertional dyspnoea and fatigue in selected stable cardiac patients.
To improve psychological wellbeing, confidence, sleep, and quality of life.
To reduce recurrent cardiovascular events and hospital admissions in appropriate patients enrolled in cardiac rehabilitation.
To establish a sustainable lifelong pattern of physical activity.

Exercise-based cardiac rehabilitation has evidence of benefit in coronary heart disease and after coronary intervention. Recent reviews include a 2024 systematic review of cardiac rehabilitation and a 2024 meta-analysis after PCI.

1. Initial assessment before prescribing exercise

Exercise must never be prescribed as a uniform programme for all individuals. The prescription must be based on the person’s clinical status, cardiovascular risk, functional capacity, goals, and preferences.

A. Clinical history

Important points include:

Previous myocardial infarction, angina, heart failure, stroke, peripheral arterial disease, valvular heart disease, arrhythmia, hypertension, or diabetes.
Previous coronary angioplasty, stenting, coronary artery bypass graft surgery, valve surgery, pacemaker implantation, or implantable cardioverter-defibrillator placement.
Current symptoms: chest pain, shortness of breath, palpitations, dizziness, syncope, leg pain on walking, fatigue, or ankle swelling.
Current level of physical activity and exercise experience.
Smoking, alcohol intake, diet, and sleep habits.
Musculoskeletal disorders, arthritis, neurological disability, poor balance, and risk of falls.
Personal goals, occupation, time available, exercise preference, and access to exercise facilities.

B. Physical examination

The following should be assessed:

Resting heart rate.
Resting blood pressure.
Body weight, body mass index, waist circumference.
Cardiac examination and signs of heart failure.
Peripheral pulses and oedema.
Functional mobility, gait, balance, and joint limitations.
Presence of diabetic neuropathy or foot lesions where relevant.

C. Assessment of exercise capacity

Exercise capacity can be assessed by:

Symptom-limited exercise stress test.
Treadmill or cycle ergometer test.
Cardiopulmonary exercise testing, where available.
Six-minute walk test.
Step test.
Field walking assessment in low-resource settings.

Exercise testing can identify:

Baseline functional capacity, often expressed in metabolic equivalents or METs.
Maximum or peak heart rate.
Blood pressure response to exercise.
Exercise-induced arrhythmias.
ST-segment changes suggestive of myocardial ischaemia.
Angina threshold.
Functional limitation and exercise intolerance.
A safe and individualized target exercise intensity.

In people with cardiovascular disease, functional testing is especially useful because exercise intensity is directly related both to fitness improvement and to the risk of adverse events. Murray & Nadel’s Textbook of Respiratory Medicine emphasizes the importance of functional exercise assessment before developing an aerobic training programme.

D. Risk stratification

Patients can broadly be considered low, moderate, or high risk.

Low-risk individual

Usually has no known cardiovascular disease, no exercise-related symptoms, and good functional capacity. Such individuals can often begin moderate physical activity gradually without extensive testing.

Moderate-risk individual

May have cardiovascular risk factors, controlled hypertension, diabetes, obesity, stable coronary disease, or reduced baseline fitness. Exercise should be individualized and medical evaluation may be appropriate.

High-risk individual

Requires medical review and often supervised cardiac rehabilitation. High-risk features include:

Unstable angina.
Recent acute myocardial infarction without clearance for rehabilitation.
Decompensated or severe heart failure.
Uncontrolled arrhythmias.
Severe symptomatic aortic stenosis or other severe valvular disease.
Uncontrolled severe hypertension.
Acute myocarditis or pericarditis.
Acute pulmonary embolism or deep-vein thrombosis.
Severe resting dyspnoea, syncope, or unexplained chest pain.

2. FITT-VP principle

A. Frequency

Frequency means the number of exercise sessions per week.

General recommendation

For most adults, aerobic exercise should be performed on:

3-5 days per week as a minimum structured programme.
Preferably most days of the week.
Daily light activity is encouraged, even if formal aerobic training is not done every day.

For general health, adults should aim for at least:

150-300 minutes per week of moderate-intensity aerobic activity, or
75-150 minutes per week of vigorous-intensity aerobic activity, or
An equivalent combination of moderate and vigorous activity.

The American Heart Association discussion of FITT prescription describes frequency, intensity, time, and type as the core components of a structured programme.

Clinical application

A sedentary individual may begin with 3 sessions per week.
A patient in stable cardiac rehabilitation may progress toward exercise on most days.
Patients with hypertension may benefit from activity on most, preferably all, days, because post-exercise blood pressure reduction is transient.
High-intensity exercise should not be prescribed on consecutive days for untrained individuals without adequate recovery.
Low-intensity walking or mobility activity can be performed on non-training days.

Regular aerobic exercise three times a week improves endurance; however, more frequent activity may be appropriate in secondary prevention and cardiac rehabilitation. Pfenninger and Fowler’s Procedures for Primary Care, p. 667.

B. Intensity

Intensity refers to how hard the individual exercises. It is the most important and most individualized component of the prescription.

Exercise intensity may be expressed using:

Percentage of maximum heart rate.
Percentage of heart-rate reserve.
Percentage of oxygen uptake reserve.
Metabolic equivalents.
Rating of perceived exertion.
Talk test.
Symptoms and clinical exercise-test findings.

1. Heart-rate method

A simple estimate of maximum heart rate is:

[ \text{Estimated maximum heart rate} = 220 - \text{age in years} ]

For example, estimated maximum heart rate of a 50-year-old:

[ 220 - 50 = 170 \text{ beats/minute} ]

A target heart rate may be selected as a percentage of maximum heart rate. For example, moderate intensity may be approximately 64%-76% of estimated maximum heart rate in healthy adults.

However, the formula is only an estimate and may be inaccurate in some people. It is less reliable in patients receiving beta-blockers, calcium-channel blockers, antiarrhythmics, or pacemaker therapy.

2. Heart-rate reserve method

Heart-rate reserve is preferred when resting and maximum exercise heart rates are known.

[ \text{Heart-rate reserve} = \text{Maximum heart rate} - \text{Resting heart rate} ]

[ \text{Target heart rate} = (\text{HRR} \times \text{desired intensity}) + \text{resting heart rate} ]

Example

A 60-year-old has:

Resting heart rate: 70/minute
Peak heart rate during exercise test: 150/minute

[ HRR = 150 - 70 = 80/minute ]

For training at 50% HRR:

[ (80 \times 0.50) + 70 = 110/minute ]

Therefore, the initial target heart rate is approximately 110/minute.

3. Rating of perceived exertion

The Borg rating of perceived exertion scale is particularly useful where heart rate is unreliable.

6: no exertion
9: very light
11: light
12-13: somewhat hard
14-16: hard
17-19: very hard
20: maximum effort

For most initially sedentary adults and stable cardiac patients, a safe initial target is usually RPE 11-13, progressing toward RPE 12-14 if tolerated.

A perceived exertion scale can be used instead of target heart rate in patients with poor chronotropic response or those taking rate-limiting drugs. Pfenninger and Fowler’s Procedures for Primary Care, p. 667.

4. Talk test

The talk test is easy to use:

Light intensity: able to sing during exercise.
Moderate intensity: able to speak in sentences, but unable to sing comfortably.
Vigorous intensity: only a few words can be spoken before pausing for breath.

Moderate exercise is often the best starting level for the general population and for stable cardiovascular patients.

5. METs

One MET represents resting oxygen consumption, approximately:

[ 3.5 \text{ mL O}_2/\text{kg}/\text{minute} ]

Examples:

Activity	Approximate intensity
Slow walking	2-3 METs
Brisk walking	3-5 METs
Cycling slowly	4-6 METs
Jogging	7-10 METs
Running	>10 METs

An exercise programme should begin below the individual’s symptom, angina, or ischaemic threshold.

Recommended training intensity

Individual	Suggested initial aerobic intensity
Sedentary healthy adult	Light to moderate
Older adult	Light to moderate, gradual progression
Hypertension	Moderate intensity preferred
Obesity or diabetes	Moderate intensity, longer duration as tolerated
Stable coronary artery disease	Individualized according to stress-test findings
Stable heart failure	Low to moderate intensity, supervised if indicated
Cardiac rehabilitation patient	Usually moderate, individualized by symptoms, test results, RPE, and HR response

C. Time or duration

Time means the duration of each exercise session.

General recommendation

Start with 10-20 minutes/session in sedentary or deconditioned persons.
Progress toward 30-60 minutes/session.
The total aim is usually at least 150 minutes/week of moderate aerobic exercise.

A person who cannot exercise continuously for 30 minutes may divide activity into shorter sessions, such as:

10 minutes in the morning,
10 minutes in the afternoon,
10 minutes in the evening.

Accumulated short bouts are beneficial and improve adherence. Three 10-minute exercise periods can provide a similar training effect to one 30-minute continuous session. Pfenninger and Fowler’s Procedures for Primary Care, p. 667.

Importance of gradual duration increase

In a sedentary patient, duration should generally be increased before intensity. For example:

Week 1: 10 minutes brisk walking, 3 days/week.
Week 2: 15 minutes, 3 days/week.
Week 3: 20 minutes, 4 days/week.
Week 4 onward: work toward 30 minutes on most days.

This approach reduces fatigue, injury, excessive cardiovascular stress, and early dropout.

D. Type of exercise

The selected activity should be rhythmic, dynamic, safe, enjoyable, and appropriate for the individual’s functional ability.

Preferred aerobic activities

Walking.
Brisk walking.
Treadmill walking.
Cycling or stationary cycling.
Swimming.
Water aerobics.
Jogging, if suitable.
Rowing.
Stair climbing.
Dancing.
Low-impact aerobic exercise.

Walking is often the most practical first-line recommendation because it is low cost, accessible, and easily adjusted in speed and duration.

Factors determining exercise type

Type should be selected according to:

Age and baseline fitness.
Presence of coronary artery disease or heart failure.
Obesity.
Arthritis or joint disease.
Diabetic neuropathy or foot disease.
Balance impairment.
Exercise preference.
Availability of equipment and supervision.
Climate and environment.
Financial and social factors.

For example:

Obese persons or those with knee osteoarthritis may benefit from cycling, swimming, or water exercise.
A frail older person may begin with supervised walking or seated exercise.
A patient with peripheral arterial disease may use interval walking, stopping briefly when claudication develops and resuming when pain settles.
A person with severe balance problems may prefer stationary cycling.

Variety is desirable because it reduces boredom and encourages long-term adherence. Pfenninger and Fowler’s Procedures for Primary Care, p. 667.

E. Volume

Exercise volume is the total amount of activity performed. It is determined by:

[ \text{Frequency} \times \text{Intensity} \times \text{Duration} ]

A common method of expressing volume is MET-minutes per week.

[ \text{MET-minutes/week} = \text{MET level} \times \text{minutes/session} \times \text{sessions/week} ]

Example

Brisk walking at 4 METs for 30 minutes, 5 days/week:

[ 4 \times 30 \times 5 = 600 \text{ MET-minutes/week} ]

This meets the usual minimum weekly target of approximately 500-1,000 MET-minutes/week.

Higher exercise volume may be needed for weight loss, prevention of weight regain, and further metabolic benefit, but should be achieved progressively.

F. Progression

Progression is the systematic increase in exercise load as fitness improves.

Principles of progression

Begin at a level that the person can perform safely.
Increase duration before increasing intensity.
Increase frequency gradually.
Increase only one variable at a time.
Allow adequate recovery.
Reassess symptoms, RPE, heart rate, blood pressure, and adherence.
Reduce the programme during intercurrent illness, injury, excessive fatigue, or worsening cardiac symptoms.

A useful practical rule is to increase total training load by approximately 5%-10% per week, depending on fitness and clinical condition.

Stages of progression

Initial stage

Goal: make exercise safe, comfortable, and habitual.

Low intensity.
Short duration.
Frequent education and encouragement.
Focus on technique, safety, and symptom recognition.

Improvement stage

Goal: improve aerobic capacity.

Gradually increase duration and weekly frequency.
Moderate intensity is usually introduced.
The patient gains endurance and confidence.

Maintenance stage

Goal: sustain exercise as a lifelong habit.

Maintain the planned weekly volume.
Include variety.
Adjust the programme for seasons, travel, occupation, and changing health status.

Approximately 12 weeks of regular training may be required before a new level of exercise capacity is established. Pfenninger and Fowler’s Procedures for Primary Care, p. 667.

3. Warm-up and cool-down

Every cardiovascular exercise session should include:

Warm-up.
Conditioning phase.
Cool-down.

A. Warm-up

A warm-up should last approximately 5-10 minutes.

It may include:

Slow walking.
Gentle cycling.
Mobility exercises.
Dynamic stretching.
Low-intensity movements resembling the planned activity.

Benefits

Gradually increases heart rate and blood flow.
Increases skeletal-muscle temperature.
Improves joint mobility.
Reduces the sudden haemodynamic stress of exercise.
May reduce risk of angina, arrhythmia, and musculoskeletal injury.

B. Conditioning phase

This is the main aerobic training component.

Examples:

30 minutes of brisk walking.
20 minutes of cycling at moderate intensity.
Intermittent walking in a deconditioned patient.
Supervised treadmill or bicycle exercise in cardiac rehabilitation.

C. Cool-down

The cool-down should last at least 5-10 minutes.

It includes gradually slowing down rather than stopping abruptly.

Benefits

Prevents sudden venous pooling in the legs.
Reduces post-exercise dizziness and hypotension.
Allows gradual fall in heart rate and blood pressure.
May reduce risk of post-exercise arrhythmia or angina.
Is particularly important in older adults and patients with cardiovascular disease.

Warm-up and cool-down are specifically advised after aerobic exercise, especially for older people. Pfenninger and Fowler’s Procedures for Primary Care, p. 667.

4. Monitoring during cardiovascular exercise

Monitoring is particularly important in cardiac patients and during supervised rehabilitation.

Parameters to monitor

Heart rate.
Blood pressure, when indicated.
Rhythm abnormalities.
RPE.
Oxygen saturation in selected patients.
Symptoms.
Exercise duration and workload.
Recovery heart rate after exercise.

Symptoms requiring stopping exercise

Exercise must be stopped immediately if the patient develops:

Chest pain, pressure, tightness, or angina.
Severe or unusual breathlessness.
Dizziness, near-syncope, or syncope.
Palpitations with discomfort.
New confusion or weakness.
Marked pallor, sweating, or cyanosis.
Severe leg pain.
Severe fatigue out of proportion to the workload.
New wheeze or inability to continue.
Abnormal blood-pressure response where monitored.

The individual should be medically assessed before resuming training if such symptoms occur.

5. Safety and contraindications

Absolute contraindications to exercise training

Exercise should be deferred in the presence of:

Acute myocardial infarction or unstable angina.
Acute myocarditis or pericarditis.
Uncontrolled symptomatic arrhythmia.
Decompensated heart failure.
Acute pulmonary embolism.
Acute systemic infection with fever.
Severe symptomatic aortic stenosis.
Uncontrolled severe hypertension.
Acute aortic syndrome or suspected aortic dissection.

Relative contraindications or situations needing modification

These require individual clinical judgment:

Severe hypertension.
Uncontrolled diabetes or frequent hypoglycaemia.
Moderate valvular heart disease.
Stable heart failure.
Pacemaker or implantable cardioverter-defibrillator.
Significant peripheral arterial disease.
Severe anaemia.
Advanced kidney disease.
Pregnancy with medical complications.
Severe arthritis, osteoporosis, or risk of falls.

Environmental precautions

Patients should:

Avoid exercise in extreme heat, humidity, cold, or poor air quality.
Maintain adequate hydration.
Wear comfortable clothes and suitable footwear.
Avoid heavy meals, smoking, and alcohol immediately before exercise.
Avoid exercising alone if they are high risk or have recent symptoms.
Carry emergency medication, such as prescribed sublingual nitrate, if advised by the clinician.

6. Individualization in specific cardiovascular conditions

A. Hypertension

Exercise is a core non-pharmacological treatment for hypertension.

Prescription

Frequency: most or all days of the week.
Intensity: moderate intensity is generally preferred.
Time: at least 20-30 minutes/day, with a weekly goal of 90-150 minutes or more.
Type: aerobic exercise, resistance training, or combined exercise.

Avoid heavy isometric exertion and breath holding, especially in uncontrolled hypertension, because these can cause an excessive rise in blood pressure.

B. Coronary artery disease

Exercise is beneficial in stable coronary disease, particularly through cardiac rehabilitation.

Important principles

Obtain medical clearance and stress-test information where possible.
Exercise below the angina or ischaemic threshold.
Include prolonged warm-up and cool-down.
Monitor for chest pain, ECG changes, excessive dyspnoea, and abnormal blood-pressure response.
Use RPE and symptoms, especially in patients receiving beta-blockers.

C. Heart failure

Stable heart failure patients can benefit from carefully selected aerobic training.

Principles

Begin with low-intensity intermittent exercise.
Gradually progress to moderate continuous aerobic exercise.
Monitor symptoms, weight, oedema, fatigue, and breathlessness.
Avoid exercise during acute decompensation, recent worsening of symptoms, rapidly increasing oedema, or acute infection.

Structured and supervised aerobic exercise can improve functional capacity and quality of life in stable heart failure. Goldman-Cecil Medicine, Lifestyle Modification section.

D. Diabetes mellitus

Exercise improves insulin sensitivity and cardiovascular risk.

Precautions

Check blood glucose when indicated.
Avoid exercise during severe hypoglycaemia or marked hyperglycaemia with ketones.
Carry carbohydrate for possible hypoglycaemia.
Inspect feet and use appropriate footwear.
Consider neuropathy, retinopathy, and kidney disease when selecting exercise type and intensity.

E. Older adults

The aim is to preserve independence, reduce cardiovascular risk, and prevent falls.

Principles

Start slowly and use low-impact activities.
Prefer walking, stationary cycling, water exercise, or chair-based exercise where needed.
Add balance and resistance exercises.
Allow longer warm-up and cool-down.
Consider vision, hearing, balance, joint disease, medications, and fall risk.

7. Resistance, flexibility, and balance training

Although aerobic exercise is central to cardiovascular conditioning, the prescription should be multidimensional.

Resistance training

Resistance exercise should generally be added on 2 or more days per week.

Benefits include:

Improved muscular strength and endurance.
Better ability to perform daily activities.
Improved glucose handling.
Support for weight management.
Preservation of lean body mass.
Improved bone health and functional independence.

Examples:

Resistance bands.
Light free weights.
Body-weight exercises.
Sit-to-stand exercises.
Machine-based resistance training.

In cardiac patients, heavy lifting and Valsalva manoeuvre should be avoided unless properly assessed and supervised.

Flexibility training

Flexibility exercise improves joint range of motion and comfort. It should be performed after warm-up or at the end of the session.

Balance training

Balance exercises are particularly useful in older adults and those at risk of falls.

Examples:

Tandem walking.
Heel-to-toe standing.
Single-leg stance with support.
Tai chi.

8. Adherence and behavioural principles

A technically correct prescription is ineffective if the patient does not follow it. Therefore, adherence is a central principle.

Measures to improve adherence

Set realistic and measurable goals.
Begin with enjoyable activities.
Make exercise convenient and affordable.
Encourage family participation or group exercise.
Use a diary, pedometer, smart watch, or mobile activity tracker.
Schedule exercise at a fixed time.
Address fear of exertion after a cardiac event.
Provide written instructions.
Review progress at regular intervals.
Give positive feedback for consistency rather than only weight loss or performance.

The most effective programme is the one that is safe, acceptable, and sustainable for the individual.

9. Sample cardiovascular exercise prescription

Example: sedentary 55-year-old adult with controlled hypertension

Goal: Improve cardiovascular fitness and assist blood-pressure control.

Component	Prescription
Frequency	Brisk walking 5 days/week
Intensity	Moderate intensity, RPE 11-13; able to talk but not sing
Time	Start 20 minutes/session; progress to 30-40 minutes/session
Type	Brisk walking; stationary cycling if weather or joint pain limits walking
Warm-up	5-10 minutes slow walking and mobility movements
Conditioning	Brisk walking at prescribed intensity
Cool-down	5-10 minutes slow walking
Resistance training	2 days/week, light-to-moderate resistance for major muscle groups
Progression	Increase duration by 5 minutes every 1-2 weeks if symptom-free
Monitoring	Note RPE, symptoms, blood pressure if available, and weekly activity record

Conclusion

Cardiovascular exercise prescription is an individualized and progressive plan designed to improve aerobic fitness, functional capacity, and cardiovascular health while minimizing risk. It should begin with proper clinical assessment and risk stratification. The exercise dose is defined through the FITT-VP principle: frequency, intensity, time, type, volume, and progression.

A complete prescription must also include warm-up, cool-down, safety precautions, monitoring, patient education, and periodic reassessment. In healthy adults, the usual target is at least 150 minutes of moderate aerobic activity each week. In patients with cardiovascular disease, exercise should be based on symptoms, medications, functional capacity, and, where appropriate, stress-test findings and supervised cardiac rehabilitation.

Exam-ending line: Thus, the main principle is to prescribe the right exercise, at the right dose, for the right patient, with gradual progression and continuous attention to safety.

same way for this Describe resistance exercise training principles.

Reading File

Finding Sources

Searching PubMed

resistance training AND exercise prescription

Searching the Web

ACSM resistance exercise training prescription frequency intensity sets repetitions progression adults

Principles of Resistance Exercise Training

Introduction

Resistance exercise training is planned physical activity in which skeletal muscles work against an external resistance to improve muscular strength, endurance, power, muscle mass, bone health, physical function, and metabolic health.

The resistance may be provided by:

Free weights such as dumbbells and barbells
Weight machines
Resistance bands or tubing
Body weight
Medicine balls
Cable machines
Manual resistance
Water resistance
Functional tasks such as sit-to-stand or stair climbing

Resistance training is not limited to athletes or bodybuilders. It is an important part of exercise prescription for healthy adults, older adults, people with obesity, diabetes, hypertension, osteoporosis, arthritis, stable cardiovascular disease, chronic lung disease, and rehabilitation patients.

A resistance exercise prescription must be individualized, goal-directed, technically correct, safe, progressive, and regularly reviewed.

The central principles are:

Pre-training assessment and screening
Individualization
Specificity
Overload
Progression
Appropriate frequency, intensity, volume, and rest
Correct technique and full pain-free range of motion
Recovery
Safety and monitoring
Adherence and long-term maintenance

1. Definition and objectives of resistance training

Resistance training involves repeated voluntary muscle contractions against resistance. It may be:

Dynamic resistance exercise: the muscle contracts while the joint moves, for example squats, biceps curls, leg press, or chest press.
Isometric exercise: the muscle contracts without visible joint movement, for example holding a plank or wall sit.
Isokinetic exercise: movement occurs at a fixed speed using specialized equipment, commonly in rehabilitation settings.

Main objectives

The programme differs according to the goal. Common goals include:

Increasing muscular strength.
Improving muscular endurance.
Increasing muscle mass or hypertrophy.
Improving functional capacity and independence.
Improving balance and reducing falls in older adults.
Supporting weight management and preserving lean body mass.
Improving insulin sensitivity and glucose control.
Improving bone density and reducing osteoporosis risk.
Reducing frailty and sarcopenia.
Supporting cardiac and pulmonary rehabilitation.
Improving sports performance and power.

Resistance training using free weights or machines can improve muscle strength or endurance depending on the training regimen. Murray & Nadel’s Textbook of Respiratory Medicine, Exercise Training section.

2. Pre-exercise assessment and screening

Before beginning a resistance programme, the individual should be assessed for medical, functional, and musculoskeletal risks.

A. History

Ask about:

Previous exercise experience.
Current activity level.
Previous injuries.
Joint pain, stiffness, instability, or swelling.
Back pain or neck pain.
Osteoporosis or previous fragility fracture.
Cardiovascular disease, hypertension, diabetes, or chronic lung disease.
Neurological disease, poor balance, or falls.
Previous surgery.
Current medications, particularly antihypertensives, insulin, anticoagulants, corticosteroids, and drugs affecting balance.
Personal goals, exercise preferences, and access to equipment.

B. Physical assessment

Assessment may include:

Blood pressure and resting heart rate.
Height, weight, body mass index, and waist circumference.
Posture and movement pattern.
Gait, balance, and mobility.
Joint range of motion.
Hand-grip strength, chair-rise test, or sit-to-stand test in older adults.
Baseline functional tasks, for example stair climbing or walking ability.
Strength testing where appropriate.

C. Strength assessment

The resistance used in training is often based on the one-repetition maximum, abbreviated as 1RM.

Definition of 1RM

One-repetition maximum is the greatest load a person can lift once through the complete range of movement with correct technique.

For example, if a person can perform one correctly executed leg press with 80 kg but cannot perform a second repetition, their leg-press 1RM is 80 kg.

Why 1RM is useful

It allows resistance to be expressed objectively as a percentage of maximum capacity:

[ \text{Training load} = \text{Percentage of 1RM} ]

For example:

40 kg used by a person with a 1RM of 80 kg:

[ \frac{40}{80} \times 100 = 50% \text{ of 1RM} ]

In frail, elderly, painful, or cardiovascular patients, direct maximal testing may be unsuitable. A safer alternative is estimating strength from a submaximal test, such as a 5RM, 8RM, 10RM, or 15RM test.

An 8RM means the maximum load that can be lifted correctly eight times but not a ninth time.

3. Basic training principles

A. Individualization

Every resistance programme must be tailored to the individual.

The prescription should take into account:

Age.
Fitness level.
Current muscle strength.
Medical diagnosis.
Cardiovascular risk.
Joint condition and previous injury.
Functional disability.
Medication use.
Exercise goals.
Available time and equipment.
Motivation and preference.

For example:

A young athlete seeking maximal strength requires heavier loads and lower repetitions.
An older adult with frailty may begin with chair stands, wall push-ups, and resistance bands.
A person with knee osteoarthritis may use a pain-free range and choose cycling, leg extension, supported squat, or resistance-band work.
A patient with hypertension should avoid breath holding and sudden maximal lifts.
A patient after cardiac rehabilitation should begin with low-to-moderate resistance under appropriate supervision.

Therefore, the same programme should not be given to every person.

B. Specificity

The principle of specificity states that training adaptations are specific to the muscles trained, movement performed, contraction type, range of motion, speed, and energy system used.

In simple terms:

To improve a particular task, train movements and muscles that are relevant to that task.

Examples:

To improve stair climbing, train quadriceps, gluteal muscles, calf muscles, and functional movements such as step-ups and sit-to-stands.
To improve lifting ability at work, train appropriate pushing, pulling, lifting, and carrying movements.
To improve grip, include grip exercises, carrying tasks, or hand-strengthening exercises.
To improve bone health, include weight-bearing and muscle-loading activities where safe.
To improve muscular endurance, use lighter resistance and higher repetitions.
To improve maximal strength, use relatively heavier resistance and fewer repetitions.

A programme should involve all major muscle groups rather than concentrating only on visible muscles of the chest and arms.

C. Overload

The overload principle means that the muscle must be challenged beyond its usual level of work in order to adapt.

If a person repeatedly lifts a load that is too easy, there is little improvement in strength or endurance. The stimulus must be sufficient to produce fatigue while maintaining good technique.

Overload can be achieved by increasing one or more variables:

Resistance or load.
Number of repetitions.
Number of sets.
Training frequency.
Range of motion.
Time under tension.
Movement complexity.
Reduction in rest interval.
Exercise speed, where power is the goal.

Important point

Overload must be gradual. Excessive load, poor technique, or rapid progression increases the risk of muscle strain, joint injury, tendinopathy, excessive blood-pressure rise, and loss of motivation.

D. Progression

Progression is the gradual increase in training stress as the body adapts.

A person who begins with body-weight squats may progress as follows:

Supported chair sit-to-stand.
Body-weight squat.
Squat with resistance band.
Goblet squat with a dumbbell.
Heavier squat with greater resistance.

Progression should occur only when the individual can complete the planned exercise with correct technique, without excessive fatigue, pain, or adverse symptoms.

Methods of progression

Progression may be achieved by:

Increasing the load.
Increasing repetitions.
Increasing the number of sets.
Increasing range of movement.
Improving movement control.
Increasing training frequency.
Reducing rest time in endurance training.
Progressing from machine to free-weight exercise.
Progressing from supported to unsupported movement.
Progressing from simple to complex functional movements.

Practical progression rule

When an individual can perform 1-2 repetitions more than the planned repetition target for two consecutive sessions with correct form, resistance may be increased.

A common increase is approximately:

2%-10% for upper-limb exercises
5%-10% for lower-limb exercises

Progress should be slower in older adults, people with chronic disease, and those recovering from injury or surgery.

E. Reversibility

The principle of reversibility means that gains are gradually lost when training stops.

Muscle strength, endurance, balance, and functional capacity decline with inactivity. This is particularly important in older adults and hospitalized patients, who can rapidly lose muscle mass and function.

Therefore:

Resistance training should be continued long term.
A maintenance programme is needed after rehabilitation.
Temporary reduction may be necessary during illness, but exercise should be restarted gradually when safe.
Consistency is more important than occasional excessive training sessions.

F. Variation

Variation means changing selected components of training over time to prevent boredom, plateau, and excessive repetitive stress.

Variation may include changing:

Exercise order.
Resistance method.
Repetition range.
Number of sets.
Rest interval.
Training environment.
Machine exercises versus free weights.
Functional exercises versus isolated muscle exercises.

Variation should be planned, not random. The basic goals, correct technique, and progressive overload must remain.

4. FITT-VP components of resistance exercise prescription

The resistance training dose can be described by a modified FITT-VP framework:

Frequency
Intensity
Time
Type
Volume
Progression

In resistance training, the prescription must also state:

Exercises selected.
Muscles trained.
Number of sets.
Number of repetitions.
Rest interval.
Movement speed.
Order of exercises.

A. Frequency

Frequency means the number of resistance-training sessions performed each week.

General recommendation

For most healthy adults:

Train each major muscle group on 2-3 non-consecutive days per week.
Allow at least about 48 hours of recovery before training the same muscle group heavily again.

For beginners, a full-body programme performed two days per week is practical and effective.

Why non-consecutive days are recommended

Muscles, tendons, ligaments, and the nervous system require recovery after resistance training. Training the same muscle intensely every day may cause:

Persistent soreness.
Poor technique.
Reduced performance.
Tendon overuse.
Increased injury risk.
Inadequate recovery.

The ACSM guidance summarized in an ACSM resistance-training resource recommends a minimum of two non-consecutive resistance-training days per week, including exercises for major muscle groups.

Frequency by training status

Group	Usual frequency
Beginner	2-3 full-body sessions/week
Older adult or frail individual	2 days/week initially
Intermediate trainee	3-4 sessions/week
Advanced athlete	4-6 sessions/week, often using split routines
Cardiac rehabilitation patient	2-3 sessions/week, individualized
During acute illness or injury	Pause or reduce training until medically appropriate

B. Intensity or load

Intensity refers to the resistance used during an exercise.

It may be prescribed using:

Percentage of 1RM.
RM range, for example 8RM or 12RM.
Resistance-band colour or tension.
Body-weight difficulty.
Rating of perceived exertion.
Ability to complete planned repetitions with good technique.

Suggested intensity ranges

Goal	Approximate load	Typical repetitions
Muscular endurance	<70% of 1RM	10-25 repetitions
General fitness	Moderate load	8-15 repetitions
Strength in beginners	60%-70% of 1RM	8-12 repetitions
Maximal strength	≥80% of 1RM	1-6 repetitions
Muscle hypertrophy	About 60%-85% of 1RM	6-12 repetitions
Power	Light to moderate load, moved fast with control	3-6 repetitions
Frail or older adult	Light load initially	10-15 repetitions

Recent evidence synthesis supports progressive resistance training for muscle strength, size, physical performance, gait speed, balance, and related functional outcomes. It suggests that strength gains are supported by heavier loads, full range of motion, 2-3 sets, and at least two sessions weekly, while the exact prescription should still be adapted to the trainee. See the ACSM evidence overview.

Rating of perceived exertion

When 1RM testing is impractical, exertion can guide load selection.

A useful description is:

The first repetitions should feel manageable.
The final 2-3 repetitions should feel challenging.
The person should still be able to maintain posture, controlled movement, and normal breathing.

The exercise should not be continued to failure in beginners, frail adults, or patients with significant comorbidity unless specifically supervised.

C. Number of repetitions

A repetition is one complete performance of an exercise through the intended range of motion.

For example:

One complete biceps curl equals one repetition.
One sit-to-stand equals one repetition.
One controlled chest press equals one repetition.

Repetition range according to goal

Goal	Common repetition range
Strength	1-6 repetitions
Hypertrophy	6-12 repetitions
General fitness	8-15 repetitions
Older or frail adult	10-15 repetitions
Muscular endurance	15-25 repetitions
Early rehabilitation	Often 10-15 low-load repetitions

For health and general strength, 8-12 repetitions for major muscle groups is a commonly used starting recommendation. Older adults and frail individuals often begin with 10-15 repetitions using a lighter load.

D. Sets

A set is a group of repetitions performed consecutively before resting.

For example:

[ 3 \text{ sets} \times 10 \text{ repetitions} ]

means 10 repetitions are performed, followed by rest, and repeated three times.

General recommendations

Beginners: 1-2 sets per exercise.
General fitness: 1-3 sets per exercise.
Strength and hypertrophy goals: usually 2-4 sets per exercise.
Advanced strength training: may involve more sets depending on goals and recovery.

One set is beneficial compared with no training, especially in untrained individuals. However, two or more sets often produce greater improvements when time and recovery permit.

E. Volume

Training volume is the total work performed.

A simple estimate is:

[ \text{Volume} = \text{sets} \times \text{repetitions} \times \text{load} ]

Example:

A person completes:

[ 3 \text{ sets} \times 10 \text{ repetitions} \times 20 \text{ kg} ]

[ = 600 \text{ kg of total lifted load} ]

Although this calculation does not capture every aspect of training, it is useful for monitoring change over time.

Importance of volume

Higher volume generally produces greater training adaptations up to a point.
Excessive volume without recovery can cause fatigue, soreness, reduced performance, and injury.
Volume should be increased slowly.
For general health, a moderate amount of full-body resistance training is sufficient.
For hypertrophy and athletic goals, volume is usually greater.

F. Type of resistance exercise

Resistance can be applied in different ways.

1. Free weights

Examples:

Dumbbell press.
Barbell squat.
Deadlift.
Lunges.
Dumbbell row.

Advantages:

Functional movement patterns.
Requires balance and coordination.
Allows many movement variations.
Easily adjusted.

Limitations:

Requires good technique.
Higher risk if unsupervised or performed with excessive load.
May not suit severely frail or unstable patients initially.

2. Machines

Examples:

Leg press.
Chest press.
Seated row.
Leg extension.
Latissimus pull-down.

Advantages:

Easy to learn.
Controlled movement path.
Useful in beginners, older adults, and rehabilitation.
Can reduce balance demands.

Limitations:

Less transfer to some functional movements.
Equipment may not fit every body size or joint limitation.

3. Resistance bands

Examples:

Band row.
Band chest press.
Band hip abduction.
Band biceps curl.

Advantages:

Low cost.
Portable.
Suitable for home programmes.
Resistance can be graded.

Limitations:

Actual resistance is harder to quantify.
Band should be checked for cracks or damage.
Movement must remain controlled.

4. Body-weight training

Examples:

Sit-to-stand.
Wall push-up.
Step-up.
Bridge.
Calf raise.
Squat.

Advantages:

No equipment required.
Functional.
Suitable for home exercise.
Easy to begin at low intensity.

5. Functional resistance exercise

Functional training targets movements required in daily life.

Examples:

Chair rise.
Carrying groceries.
Step-up.
Squat-to-reach.
Floor-to-stand practice.
Modified lifting and carrying.

This is especially relevant for older adults, rehabilitation patients, and people with occupational demands.

5. Exercise selection and order

A balanced programme should include major muscle groups.

Major muscle groups to train

Region	Important exercises
Legs and hips	Squat, leg press, step-up, lunges, hip bridge
Chest	Push-up, chest press
Back	Seated row, dumbbell row, lat pull-down
Shoulders	Shoulder press, lateral raise, band press
Arms	Biceps curl, triceps extension
Abdomen and trunk	Plank, bridge, controlled trunk exercises
Calves	Calf raise
Hand and grip	Carrying tasks, grip exercises where indicated

Order of exercises

A usual sequence is:

Large muscle groups before small muscle groups.
Multi-joint exercises before single-joint exercises.
Higher-skill exercises before exercises that cause marked fatigue.
Exercises requiring balance and coordination before fatigue develops.

For example:

Squat or leg press.
Chest press.
Seated row.
Step-up.
Shoulder press.
Biceps curl.
Triceps extension.
Calf raise.
Core exercise.

This order allows safe performance of demanding, functional movements while the person is fresh.

6. Rest intervals and movement speed

A. Rest interval

Rest is required between sets to restore muscle energy stores and maintain safe technique.

Usual rest periods

Goal	Typical rest between sets
Muscular endurance	30-60 seconds
General fitness	1-2 minutes
Hypertrophy	1-2 minutes
Heavy strength work	2-5 minutes
Frail or cardiac patient	Longer rest as required by symptoms and recovery

Shorter rest intervals increase metabolic stress and are useful for endurance training, but they can also increase fatigue and cardiovascular demand.

B. Movement speed

Resistance exercises should generally be performed with slow-to-moderate, controlled movement.

A practical rule:

Lift in a controlled manner.
Lower the load slowly and under control.
Avoid jerking, bouncing, swinging, or throwing the weight.
Do not use momentum to complete repetitions.

Power training is an exception. In power training, the lifting phase may be performed faster, but only with light-to-moderate loads, excellent technique, and appropriate supervision.

7. Correct technique and range of motion

Technique is a central safety principle.

Important aspects of correct technique

Use stable posture and alignment.
Maintain a neutral spinal position where appropriate.
Move through a full, comfortable, pain-free range of motion.
Use controlled movement.
Avoid sudden twisting under heavy load.
Keep knees and feet aligned during squats, step-ups, and lunges.
Avoid locking joints forcefully.
Select resistance that permits controlled form.
Stop if movement becomes unsafe or painful.

Full range of motion

Training through full pain-free range improves functional capacity and joint mobility. However, range may need modification in patients with:

Acute joint inflammation.
Recent surgery.
Severe osteoarthritis.
Shoulder instability.
Painful spinal disorders.
Joint replacement precautions.

“Pain-free” does not mean that exercise should always be effortless. Muscle fatigue is expected, but sharp joint pain, swelling, instability, or persistent worsening pain is not acceptable.

8. Breathing and the Valsalva manoeuvre

The individual should breathe continuously during resistance exercise.

A simple instruction is:

Exhale during the effort phase and inhale during the return phase.

For example:

Exhale while lifting the dumbbell.
Inhale while lowering it.

Valsalva manoeuvre

The Valsalva manoeuvre means forcefully exhaling against a closed glottis, usually while holding the breath during heavy lifting.

It can cause large temporary changes in:

Blood pressure.
Intrathoracic pressure.
Venous return.
Heart rate.
Cerebral blood flow.

It should generally be avoided by:

Beginners.
Older adults.
Individuals with hypertension.
People with coronary artery disease.
Patients with heart failure.
People with retinal disease.
Those at risk of syncope.

Breath holding may increase blood pressure excessively. Therefore, instruction in normal breathing is an essential part of resistance exercise training.

9. Warm-up and cool-down

Warm-up

Before resistance exercise, perform 5-10 minutes of low-intensity activity.

Examples:

Slow walking.
Stationary cycling.
Gentle arm movement.
Dynamic mobility drills.
Light practice sets before working sets.

Benefits

Increases muscle temperature and blood flow.
Prepares joints and connective tissue.
Improves movement control.
Reduces injury risk.
Allows gradual cardiovascular adaptation.

Cool-down

After training:

Walk slowly or perform gentle movement for 5-10 minutes.
Allow heart rate and breathing to return gradually toward baseline.
Perform gentle stretching if desired.

Cool-down is particularly useful for older adults and people with cardiovascular disease.

10. Recovery and periodization

Adaptation occurs during recovery, not only during exercise.

Recovery principles

Adequate recovery requires:

Rest days between intense sessions for the same muscles.
Adequate sleep.
Adequate protein and energy intake.
Hydration.
Management of stress.
Modification of training during acute illness or injury.

Signs of inadequate recovery

Persistent muscle soreness.
Declining performance.
Unusual fatigue.
Poor sleep.
Irritability.
Loss of motivation.
Recurrent injuries.
Persistent joint pain.
Elevated resting heart rate.

If these occur, reduce training volume or intensity and reassess the programme.

Periodization

Periodization is planned variation of training volume and intensity over weeks or months.

A simple approach for general health:

Initial phase: low load, focus on learning technique.
Improvement phase: gradually increase resistance and sets.
Maintenance phase: maintain strength with regular exercise and periodic variation.

Athletes may use more complex cycles, but for most patients a simple progressive plan is sufficient.

11. Safety precautions and contraindications

Resistance training is safe for most people when appropriately prescribed and performed. However, exercise should be stopped and reviewed if adverse symptoms occur.

Stop exercise if there is:

Chest pain or chest pressure.
Severe breathlessness.
Dizziness, fainting, or near-fainting.
New palpitations with discomfort.
Severe headache.
Blurred vision.
Marked weakness.
Sudden joint pain.
New swelling.
Numbness or tingling.
Loss of coordination.
Severe or worsening back pain.

Situations needing medical review or modification

Uncontrolled hypertension.
Unstable angina.
Recent myocardial infarction without clearance.
Decompensated heart failure.
Significant symptomatic valvular heart disease.
Uncontrolled arrhythmia.
Acute infection or fever.
Acute deep-vein thrombosis or pulmonary embolism.
Acute musculoskeletal injury.
Severe osteoporosis or recent fracture.
Recent surgery.
Severe diabetic retinopathy.
Uncontrolled diabetes with hypoglycaemia risk.

Cardiovascular considerations

Resistance training is useful as a complement to aerobic exercise in stable cardiovascular patients, but the programme should be individualized.

General precautions include:

Begin with light-to-moderate resistance.
Use controlled dynamic movement rather than prolonged strenuous isometric contractions.
Avoid breath holding.
Use longer rest periods if symptoms or fatigue occur.
Avoid lifting to exhaustion in high-risk patients.
Monitor exertion and symptoms.
Obtain cardiac rehabilitation or clinician guidance where indicated.

The ACSM hypertension guidance recommends resistance exercise 2-3 days per week and commonly uses 2-4 sets of 8-12 repetitions for major muscle groups, while emphasizing gradual progression and individualized tolerance. See ACSM hypertension recommendations.

12. Special populations

A. Older adults

Resistance training is particularly important in older persons because it helps counter:

Sarcopenia.
Frailty.
Reduced mobility.
Falls.
Loss of independence.
Osteoporosis.
Difficulty with daily tasks.

Prescription principles

Begin with 1 set of 10-15 repetitions.
Use light resistance, body weight, bands, or machines.
Train 2 days/week initially.
Include sit-to-stand, step-ups, calf raises, rows, chest press, and grip activities.
Incorporate balance exercises.
Progress gradually.
Prioritize good technique, safe environment, and functional movements.

B. Hypertension

Resistance training can be included, but avoid maximal lifting and Valsalva manoeuvre.

Prefer dynamic resistance exercise.
Start with moderate loads.
Use 8-15 repetitions.
Maintain normal breathing.
Avoid excessive isometric straining.
Monitor blood pressure where indicated.

C. Diabetes mellitus

Resistance training improves glucose uptake and insulin sensitivity.

Precautions:

Consider glucose monitoring where required.
Carry a carbohydrate source if using insulin or sulfonylureas.
Inspect feet.
Modify exercises if there is severe peripheral neuropathy, foot ulceration, proliferative retinopathy, or autonomic neuropathy.
Avoid high-impact or heavy straining in advanced retinopathy unless medically cleared.

D. Osteoporosis

Resistance training supports bone health and posture.

Principles:

Include weight-bearing and strengthening exercise.
Emphasize posture and hip-extensor strength.
Avoid loaded spinal flexion and twisting in people with vertebral fractures or severe osteoporosis.
Use controlled, upright movements.

E. Osteoarthritis

Resistance training reduces disability by strengthening muscles around affected joints.

Principles:

Use low-to-moderate resistance.
Work in a comfortable range.
Avoid painful excessive loading during an acute flare.
Choose low-impact exercises.
Progress according to pain, swelling, and function.

13. Sample resistance-training programme

Example: healthy sedentary adult beginning resistance exercise

Aim: Improve general muscular strength and fitness.

Component	Prescription
Frequency	2 non-consecutive days/week initially
Warm-up	5-10 minutes brisk walking or stationary cycling
Intensity	Light-to-moderate load, final repetitions challenging but controlled
Repetitions	8-12 repetitions per exercise
Sets	1-2 sets initially; progress to 2-3 sets
Rest	1-2 minutes between sets
Exercises	Squat or leg press, chest press, seated row, step-up, shoulder press, hip bridge, calf raise, biceps curl, triceps extension, trunk exercise
Range	Full comfortable and pain-free range
Breathing	Exhale on effort, inhale on return; no breath holding
Progression	Increase load by 2%-10% after the target repetitions are comfortably achieved in two sessions
Cool-down	5-10 minutes light movement and gentle stretching

14. Example: resistance training for an older adult

Aim: Improve independence, walking ability, stair climbing, and fall prevention.

Component	Prescription
Frequency	2 days/week, non-consecutive
Intensity	Low resistance initially
Repetitions	10-15 repetitions
Sets	1 set initially, progressing to 2 sets
Exercises	Sit-to-stand, wall push-up, resistance-band row, supported step-up, calf raises, band hip abduction, grip exercise
Rest	1-2 minutes, longer if needed
Additional training	Balance and walking exercise on most days
Progression	First improve form and repetitions, then increase resistance gradually
Safety	Chair or rail support as necessary; stop for dizziness, chest discomfort, or significant pain

Conclusion

Resistance exercise training is a planned and progressive method of improving muscular strength, endurance, mass, bone health, metabolic health, balance, and functional independence. It should be individualized according to the person’s age, health status, fitness, goals, and physical limitations.

The major principles are individualization, specificity, overload, progression, reversibility, variation, correct technique, adequate recovery, and safety. A complete prescription should state the exercises, muscle groups, frequency, load, repetitions, sets, rest period, range of motion, breathing instructions, and progression plan.

For most adults, a practical starting programme is resistance exercise for all major muscle groups on 2-3 non-consecutive days each week, using 1-3 sets of 8-12 repetitions with controlled, pain-free movements. Older or frail people should usually begin with lighter loads and 10-15 repetitions.

Exam-ending line: Resistance exercise should be prescribed as a gradual, goal-specific, and safe programme in which the training load is increased only as the individual develops correct technique, tolerance, and functional capacity.

This is a shared conversation. Sign in to Orris to start your own chat.